Demountable rim



Sept. 30, 1924. 1,510,395

J. B. FUHR ET AL DEMOUNTABLE R1 M Filed April 9, 1923 J 3%27 Z5 P 0 21 1 Y Joseph B, Fuhr Arthur A. Barnes INVENTORS ITNLSS: ATTORNEY Patented Sept. 30, 1924.

UNITED STATES PATENT OFFICE.

JOSEPH B. FUHR AND ARTHUR A. BARNES, OF PHILADELPHIA, PENNSYLVANIA, AS-

SIGNORS TO FUHR-BAJRNES MANUFACTURING COMPANY, 0F PHILADELPHIA. PENNSYLVANIA, .A-CORPORA'IION OF DELAWARE.

DEMOUNTABLE RIM.

Application filed April 9, 1928." Serial No. 630,885.

To all whom it may concern:

Be it known that we, Josnrn B. Form and ARTHUR A. BARNES, citizens ofthe United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania. have invented new and useful improvements in Dcmountahle Rims, of which the following is a specification.

This invention relates to rims for automobile wheels, and the principal object is to provide a device of this nature having all of the advantages of durability of the solidrim and at the same time being constructed to effect a very easy removal of the tire.

Another important object is to produce a. device of this nature which shall be designed for rapid and cheap production.

Another object is to so construct the rim that in. case of a puncture, the battering down or bending of the flanges will not prevent removal of the tire or render the rim useless so that it must be discarded.

Another object is to provide a device of this nature which shall be devoid of parts overhanging the wheel proper.

Another object is to provide a. device in which the locking member shall be so constructed and disposed as to client partial disassociation of the rim elements when moved to unlocked position.

Anothc; object is to provide a locking do vice which needs no special tools to operate it.

Another object is to reduce a rim which when on the wheel Wil stand all the tests that a solid rim will, and which when domounted will stand considerably more overload than is ever required of a rim.

With these and other objects in view as will be more apparent, the invention consists in certain novelconstruction and combination and arrangement of parts, the essential features of which are hereinafter fully described, are particularly pointed out in the appended claim, and are illustrated in the accompanying drawing, in which Figure l a sectional View of our improved rim per se.

Figure 2 is a similar view of-the rim detaclierl.

Figure 3 is an attached sectional View of the rim as applied o a wheel.

Like cha mters ot ref ren e refer to like parts in all views.

It is well known in the art that from the standpoint of strength and durability, the solid rim far superior to the split or contractible rim; but it is extremely difficult to remove the tire from a solid rim, and for this reason the routract blc rim has become very popular. However, even with these split rims, there is the disadvantage of. having to have a special tool to effectthe breaking or lapping at the line of split. The present invention contemplates the construe tion of a rim having substantially the strength and durability of a solid rim, and at the same time the advantage of easy removal oi the tire as in the ease of the split rim and without having to use a special tool.

Referring to the drawing in detail, 10 represents the wheel of an automobile. and ii and 1; represent the two se tions generally of our improved rim.

The rim section 11 is formed with a flange 13 which has an overturned edge 14. The flange .13 when in closed condition, presses its inner face against the side of the tire to confine it in place, as will be readily u'nderstood. The cylindrical body portion 15, is cut away at a number of places indicated as 16 and at one place 17. The cut-out at 16 has inclined faces 18 at both ends; but the cutout at 17 has one inclined face 19, and one abrupt face 20. These cut-out portions cooperate with lugs on the section 12 as will be presently set forth in detail.

The section 12 comprises a cylindrical body portion 21 which supports the entire inner surface of the tire. It also includes a flange 22 having an overturned edge 23 cor responding to the elements 13 and 1d of section 11. The body portion 21 is made of substantially the same internal diameter as the outer diameter of body 15 of section 11 so that, 15 fits snugly but slidingly Within 21. The inside of body 21 is provided with. a plurality of inwardly projecting lugs 24 of which there is one for each cut out 16, and of proper size and shape to fit snugly in said cut-out. lloughtly speaking, lugs 24 have the shape of oblique parallelograms with the angles rounded off slightly so as to more easily eil'ect the connection require of them. the seats or cut-out portion 16 being correspondiugly rounded. There is also :1 lug 25 having an oblique face 26, this lug being intended to enter cutout 17 with face too 26 contactingwith the aforementioned face 19 stantiaily solid internal annular rib except near the aforementioned abrupt face 21): Lug 26 only partly fills recess 17, the balance of th P recess being occupied by the locking latch, now to be described. T

After the sections 11 and 12 have come into engagement as above mentioned, it is necessary that they be locked against accidental displacement. For this purpose we provide a latch or looking member 27 piv oted to 21 at :38 and havin its pivot so ar ranged that the heel or en; 29 when turned to the unlocking position shown in F i ure 2 would strike element thereby slightly separating sections 11 and 12 so as to oven meme any Ercezing"of one section to another, and start the disassociating movement of the sections. At the same time, the longer end 30 forms a convenient element to pry against asst notch and is of proper size and slrape to fill up the balance of recess 17 and co-opera-te with face 20 to lock the sections 11 and 12 together, as shown in Figure 1.

The section 12 is also provided with an annular internal rib 31 which with element 15 support the rim on the wheel 10. Rib 31 is suitably shaped to abut a ainst the flange 32011 the inside of the wheel. The clamps 33 are placed opposite the cut-out portions or recesses 16 and 17 so as to re invention-limited only by the appended claim.

What we claim is A wheel rim comprising companion overlapping sections, one of said sections being provided with diagonail arranged cut-out portions at its inner e ge, diagonally arranged lugs on the other section for engagement in said recess, saidrecessed section being provided with a relatively large look ing recess havin a diagonal end and a straight end, a 200 ing ing on the lug carrying section for fittin in said locking recess and being shorter t an the recess, a locking member pivotaliy connected to the lug carrying section and having long and short end portions, said locking member adapted to swing into said lockin .recess with its short end against said locking lu for looking the sections connected and w en swung into unlocking inoperative position, the shorter end of the lockin member will engage the edge ofthe loc ing recess and move the sections apart.

In testimony whereof we affix our natures.

JOSEPH B. FUHR. ARTHUR A. BARNES.

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